Table 2.

Comparison of walking versus non-walking classification among the algorithm and independent analysts

		Analyst A				Algorithm
		Walking	Non- walking	Unknown	Total	Walking	Non- walking	Unknown	Total
Analyst B	Walking	61	4	0	65	64	1	0	65
	Non-walking	3	29	0	32	1	31	0	32
	Unknown	0	1	2	3	0	0	3	3
	Total	64	34	2	100	65	32	3	100
	Agreement	(61+29+2)/100=0.92 Cohen’s Kappa=0.831, p <.0001				(64+31+3)/100=0.98 Cohen’s Kappa=0.958, p <.0001
Algorithm	Walking	61	4	0	65
	Non-walking	3	29	0	32
	Unknown	0	1	2	3
	Total	64	34	2	100
	Agreement	(61+29+2)/100=0.92 Cohen’s Kappa=0.831, p <.0001